US3174356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable spring-loaded antibacklash gear drive
Assignee: General Precision Inc
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Filing: 1963-07-11
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Granted: 1965-03-23
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Expires: 1983-07-11
Abstract
No abstract record available.
Inventors
- 👤 George W Michalec
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:32
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/02; F16H55/17; F16H55/18; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19623; Y10T74/1987; Y10T74/19893; Y10T74/19898
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A SCISSOR GEAR FOR USE IN AN ANTIBACKLASH GEAR DRIVE COMPRISING, A FIRST GEAR HAVING A PREDETERMINED NUMBER OF TEETH, A SECOND GEAR HAVING A DIFFERENT NUMBER OF TEETH THAN THE FIRST GEAR MOUNTED ALONGSIDE SAID FIRST GEAR AND ROTATABLY SUPPORTED ON THE SAME CENTER WITH RESPECT TO SAID FIRST GEAR, AND SPRING MEANS INTERCONNECTING SAID FIRST AND SECOND GEARS WHEREBY VARIABLE UNIDIRECTIONAL SPRING-LOADING IS PROVIDED AS A FUNCTION OF DIFFERENTIAL ROTATION OF THE TWO GEARS WHEN DRIVEN BY A COMMON PINION GEAR WITHIN A PREDETERMINED RANGE.
Claim 2
Dependent Claim
87 words
A SCISSOR GEAR FOR USE IN AN ANTIBACKLASH GEAR DRIVE COMPRISING, A FIRST GEAR HAVING A PREDETERMINED NUMBER OF TEETH, A SECOND GEAR HAVING A DIFFERENT NUMBER OF TEETH THAN THE FIRST GEAR MOUNTED ALONGSIDE SAID FIRST GEAR AND ROTATABLY SUPPORTED ON THE SAME CENTER WITH RESPECT TO SAID FIRST GEAR, AND SPRING MEANS INTERCONNECTING SAID FIRST AND SECOND GEARS WHEREBY VARIABLE UNIDIRECTIONAL SPRING-LOADING IS PROVIDED AS A FUNCTION OF DIFFERENTIAL ROTATION OF THE TWO GEARS WHEN DRIVEN BY A COMMON PINION GEAR WITHIN A PREDETERMINED RANGE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |